Question
PSLE
At 17 52, Irene started driving at 69 km/h from her home to a hypermart 23 km away. She was at the hypermart for 1 h 20 min.
  1. What time did she leave the hypermart?
  2. After leaving the hypermart, Irene drove back along the same route and took 23 min to reach home. What was her average speed, in km/h, for the journey home?
4 m
(a)

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(b)

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PSLE
At 17 52, Irene started driving at 69 km/h from her home to a hypermart 23 km away. She was at the hypermart for 1 h 20 min.
  1. What time did she leave the hypermart?
  2. After leaving the hypermart, Irene drove back along the same route and took 23 min to reach home. What was her average speed, in km/h, for the journey home?